17
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905701 REV B 09/18/18, PG 17 OF 34
Fresh Air Cover Plate &
Rubber Boot Installation
Evaporator Leveling &
Fresh Air Vent Duct Cap Installation
1.
2.
3.
1.
2.
3.
4.
Remove the fitting caps, and install the rubber boot over the hardlines (See Photo 1, below).
NOTE: Insert
one hardline at a time. When finished, cap all fittings to prevent debris from getting inside the
lines.
Install the fresh air plate over the lines (See Photo 2, below).
Remove the (3) 1/4-20 x 1 ½" studs, and replace them with (3) 1/4-20 x 3/4" hex bolts (See Photo 3,
below). NOTE: Do not fully tighten the bolts at this time. Cap all (4) hardlines to protect the lines
from contamination.
Verify that the evaporator unit is level, and then tighten all of the mounting bolts.
Replace the upper 1/4-20 x 1 ½" stud on the firewall with a 1/4-20 x 3/4" hex bolt and a 1/4" sleeve washer
(See Photo 1, below).
Install (3) S-clips onto the fresh air vent duct cap (See Photo 2, below).
Install the fresh air vent duct cap over the fresh air opening on the passenger side inner fender (See Photo 3,
below). NOTE: The cap will protect the electronic heater control valve from water damage.
Photo 1
Photo 1
Photo 2
Photo 2
Photo 3
Photo 3
Firewall
Rubber Boot
338607
Fresh Air
Plate
646912
Replace (3)
1/4-20 x 1 ½" Studs
with (3) 1/4-20
Hex Bolts
Replace
1/4-20 x 1 ½" Stud with
1/4-20 x 3/4" Bolt and
1/4" Sleeve Washer
Firewall
Install (3)
S-clips
Fresh Air
Vent Duct Cap
490650
Fresh Air
Opening
Install Fresh Air Vent
Duct Cap over the
Fresh Air Opening
